PARTICLE-SIZE SEGREGATION BY SHAKING IN 2-DIMENSIONAL DISC PACKINGS

被引：43

作者：

JULLIEN, R

MEAKIN, P

PAVLOVITCH, A

机构：

[1] CENS,RECH MET PHYS SECT,F-91191 GIF SUR YVETTE,FRANCE

[2] UNIV OSLO,N-0316 OSLO 3,NORWAY

来源：

EUROPHYSICS LETTERS | 1993年 / 22卷 / 07期

关键词：

D O I：

10.1209/0295-5075/22/7/008

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A two-dimensional model for particle size segregation by shaking has been developed and applied to a binary mixture of discs with radius ratio PHI. The simulation results can be understood in terms of a simple theoretical model that becomes exact in the limit PHI --> infinity. When a single large disc is imbedded in a regular packing of small discs, it is shown that segregation occurs only for values of PHI above a critical value phi, which depends on the angle of repose alpha and varies between 2.993 ... and 12 when alpha varies from 30-degrees to 60-degrees.

引用

页码：523 / 528

页数：6

共 17 条

[1] THEORY OF SEDIMENTATION IN COLLOIDAL SUSPENSIONS [J].

BARKER, GC ;

GRIMSON, MJ .

COLLOIDS AND SURFACES, 1990, 43 (01) :55-66

[2] SCALING BEHAVIOR IN SIZE SEGREGATION (BRAZIL NUTS) [J].

DEVILLARD, P .

JOURNAL DE PHYSIQUE, 1990, 51 (05) :369-373

[3]

DURAN J, 1993, PREPRINT

[4] RECENT DEVELOPMENTS IN SOLIDS MIXING [J].

FAN, LT ;

CHEN, YM ;

LAI, FS .

POWDER TECHNOLOGY, 1990, 61 (03) :255-287

[5] COMPUTER-SIMULATION OF THE MECHANICAL SORTING OF GRAINS [J].

HAFF, PK ;

WERNER, BT .

POWDER TECHNOLOGY, 1986, 48 (03) :239-245

[6] 3-DIMENSIONAL MODEL FOR PARTICLE-SIZE SEGREGATION BY SHAKING [J].

JULLIEN, R ;

MEAKIN, P ;

PAVLOVITCH, A .

PHYSICAL REVIEW LETTERS, 1992, 69 (04) :640-643

[7]

JULLIEN R, 1991, J PHYS I, V1, P1263, DOI 10.1051/jp1:1991201

[8] A MECHANISM FOR PARTICLE-SIZE SEGREGATION IN 3 DIMENSIONS [J].

JULLIEN, R ;

MEAKIN, P .

NATURE, 1990, 344 (6265) :425-427

[9]

JULLIEN R, UNPUB

[10] 2-DIMENSIONAL DEFECT-FREE RANDOM PACKING [J].

MEAKIN, P ;

JULLIEN, R .

EUROPHYSICS LETTERS, 1991, 14 (07) :667-672

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